is a retirement savings and investment plan for civilian employees of the United States Government and members of the uniformed services. is similar to a 401K plan offered by many public and private corporations. Learn more about TSP.
Groupe PSA. Groupe PSA (informally PSA; known as PSA Peugeot CitroÃ«n from 1991 to 2016) is a French multinational manufacturer of automobiles and motorcycles sold under the Peugeot, CitroÃ«n and DS Automobiles brands, and pending the completion of their agreed purchase from GM, Opel and Vauxhall Motors too.
Prostate-specific antigen. Prostate-specific antigen (PSA), also known as gamma-seminoprotein or kallikrein-3 (KLK3), is a glycoprotein enzyme encoded in humans by the KLK3 gene. PSA is a member of the kallikrein-related peptidase family and is secreted by the epithelial cells of the prostate gland. PSA is produced for the ejaculate, where it liquefies semen in the seminal coagulum and allows sperm to swim freely.